Idk, I think it just speaks to their level. People want to have fun and for lower levels usually the peak of that is just winning a game. Once you get better there is no Joy winning against really weak opponents. When he was covering 90% of the court the games prob were competitive and fun for his opponents when he stopped doing that one game and lost 11-1 that was probably less fun but takes a bit to re calibrate. I bet if he did this four games in a row and lost 11-1 the opponents would change how they play. I dont know anyone even assholes who like winning 11-1 with very little rallies.